Inspection Procedure

HINT:

Read freeze frame data using the Techstream. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.

1. READ OUTPUT DTC (DTC P0604) 
   1. Connect the Techstream to the DLC3.
   2. Turn the ignition switch to ON.
   3. Turn the Techstream on.
   4. Clear DTC (See DTC CHECK / CLEAR ).
   5. Turn the ignition switch off and turn the Techstream off.
   6. Disconnect the Techstream.
   7. Disconnect the cable from the battery negative (-) terminal and wait for 1 minute.
   8. Connect the cable to the battery negative (-) terminal.
   9. Connect the Techstream to the DLC3.
   10. Turn the ignition switch to ON.
   11. Turn the Techstream on.
   12. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
   13. Read the DTCs.

       Result 

       RESULT CHART
       
       

       Result	Proceed to
       DTC is not output	A
       DTC P0604 is output	B

       B: REPLACE ECM  (See REMOVAL )

       A: CHECK FOR INTERMITTENT PROBLEMS  (See CHECK FOR INTERMITTENT PROBLEMS )